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Finding the Fourth Proportional to 92,516.73, 127,733.40 and 56,726.48

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Solution

The fourth proportional to 92,516.73, 127,733.40 and 56,726.48 is: 78,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,516.73 : 127,733.40 = 56,726.48 : x
  2. Step 2: Convert to fraction form
    92,516.73/127,733.40 = 56,726.48/x
  3. Step 3: Cross multiply
    92,516.73x = 127,733.40 × 56,726.48
  4. Step 4: Simplify right side
    92,516.73x = 7,245,865,521.77
  5. Step 5: Solve for x
    x = 7,245,865,521.77/92,516.73
  6. Step 6: Final answer
    x = 78,319.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.